activity
20202026
most citedNegating the Galvin Property

13 citations · 46 across the 15 of their papers we have counts for

collaborators

15 papers

math.LO2026

Compactness phenomena in HOD and the Optimality of Magidor's Covering theorem

Tom Benhamou, James Cummings, Yair Hayut +2

We continue the study of compactness phenomena between the set-theoretic universe and initiated by Goldberg--Poveda \cite{GolPov}. We focus on compactness phenomena…

math.LO2026

On the Intermediate Models of Strongly Compact Prikry Forcing

Tom Benhamou, Sebastiano Thei, Ben-Zion Weltsch

We analyze the intermediate models of the strongly compact Prikry forcing. We exhibit a simple combinatorial property which, for a given supercompact cardinal , characterize the…

math.LO2024

Applications of the Magidor Iteration to Ultrafilter Theory

Tom Benhamou, Gabriel Goldberg

We characterize sums of normal ultrafilters after the Magidor iteration (product) of Prikry forcings over a discrete set of measurable cardinals. We apply this to show that the wea…

math.LO2024

Non-Normal Magidor-Radin Types of Forcings

Tom Benhamou, Alejandro Poveda

We develop the non-normal variations of two classical Prikry-type forcings; namely, Magidor and Radin forcings. We generalize the fact that the non-normal Prikry forcing is a proje…

math.LO2023

Transferring Compactness

Tom Benhamou, Jing Zhang

We demonstrate that the technology of Radin forcing can be used to transfer compactness properties at a weakly inaccessible but not strong limit cardinal to a strongly inaccessible…

math.LO2023★ 3 cited

The Galvin property under the Ultrapower Axiom

Tom Benhamou, Gabriel Goldberg

We continue the study of the Galvin property from \cite{bgs} and \cite{Benhamou2}. In particular, we deepen the connection between certain diamond-like principles and non-Galvin ul…

math.LO2022

Saturation Properties of Ultrafilters in Canonical Inner Models

Tom Benhamou

We improve Galvin's Theorem for ultrafilters which are p-point limits of p-points. This implies that in all the canonical inner models up to a superstrong cardinal, every -compl…

math.LO2022★ 2 cited

Non-Galvin Filters

Tom Benhamou, Shimon Garti, Moti Gitik +1

We address the question of the consistency strength of certain filters and ultrafilters which fail to satisfy the Galvin property. We answer questions \cite[Questions 7.8,7.9]{TomM…

math.LO2022★ 1 cited

Galvin's property at large cardinals and an application to partition calculus

Tom Benhamou, Shimon Garti, Alejandro Poveda

In the first part of this paper, we explore the possibility for a very large cardinal to carry a -complete ultrafilter without Galvin's property. In this context, we prove t…

math.LO2022★ 6 cited

On Cohen and Prikry Forcing Notions

Tom Benhamou, Moti Gitik

We show that it is possible to add Cohen subsets to with a Prikry forcing over . This answers a question from \cite{HayutBenhanouGitik}. A strengthening of non-Galvin…

math.LO2021★ 13 cited

Negating the Galvin Property

Tom Benhamou, Shimon Garti, Alejandro Poveda

We prove that Galvin's property consistently fails at successors of strong limit singular cardinals. We also prove the consistency of this property failing at every successor of a…

math.LO2021★ 1 cited

The Variety of Projection of a Tree-Prikry Forcing

Tom Benhamou, Moti Gitik, Yair Hayut

We study which -distributive forcing notions of size can be embedded into tree Prikry forcing notions with -complete ultrafilters under various large cardinal assumptions…

math.LO2021★ 13 cited

Intermediate Models of Magidor-Radin Forcing- Part II

Tom Benhamou, Moti Gitik

We continue the work done by the authors and before that by the second author, Kanovei and koepke. We prove that for every set of ordinals in a Magidor-Radin generic extension…

math.LO2020★ 3 cited

Intermediate Models in Magidor-Radin Forcing- Part I

Tom Benhamou, Moti Gitik

We continue the work done by Gitik, Kanovei, Koepke, and later by the authors. We prove that for every set in a Magidor-Radin generic extension using a coherent sequence such t…

math.LO2020★ 4 cited

Sets in Prikry and Magidor Generic Extensions

Tom Benhamou, Moti Gitik

We continue Gitik, Kanovei and Koepke's work and study sets in generic extensions by the Magidor forcing and by the Prikry forcing with non-normal ultrafilters.